diff --git a/Packages/Kernel_23/changes.txt b/Packages/Kernel_23/changes.txt
index d9c58427426..94c5c1a5167 100644
--- a/Packages/Kernel_23/changes.txt
+++ b/Packages/Kernel_23/changes.txt
@@ -1,3 +1,7 @@
+1.16 (17 January 2003)
+- Add CGAL/LEDA_basic.h at the beginning, otherwise the dirty LEDA macros add
+  a non-consistent mess.
+
 1.15 (15 January 2003)
 - docs added for the kernel archetype
 - some names changed for the kernel archetype
diff --git a/Packages/Kernel_23/include/CGAL/basic.h b/Packages/Kernel_23/include/CGAL/basic.h
index e66a4308744..131fd091ea2 100644
--- a/Packages/Kernel_23/include/CGAL/basic.h
+++ b/Packages/Kernel_23/include/CGAL/basic.h
@@ -39,11 +39,12 @@
 #  define CGAL_BIG_ENDIAN 1
 #endif
 
-#ifndef CGAL_USE_LEDA
-#  define CGAL_USE_CGAL_WINDOW
-#else
+#ifdef CGAL_USE_LEDA
+#  include <CGAL/LEDA_basic.h>
 // The following is needed for LEDA 4.4 due to min/max problems...
 #  define LEDA_NO_MIN_MAX_TEMPL
+#else
+#  define CGAL_USE_CGAL_WINDOW
 #endif
 
 #include <CGAL/assertions.h>